. Electric railway review . rring to Figure 298 it will be seen that water issupplied to each hydrant from both directions, that is, eachside of the loop is supplying water to those hydrants beingused. A system designed in this manner supplied from apump with a 6-inch discharge would require loop piping of4-inch or possibly .5-inch pipe at the most. The loop systemis practically equivalent to running a double pipe line of thissize to each hydrant. The lineal feet of pipe in the loopmain is but slightly greater than in a single main system, andthe area of the pipe can be reduced to just one-hal
. Electric railway review . rring to Figure 298 it will be seen that water issupplied to each hydrant from both directions, that is, eachside of the loop is supplying water to those hydrants beingused. A system designed in this manner supplied from apump with a 6-inch discharge would require loop piping of4-inch or possibly .5-inch pipe at the most. The loop systemis practically equivalent to running a double pipe line of thissize to each hydrant. The lineal feet of pipe in the loopmain is but slightly greater than in a single main system, andthe area of the pipe can be reduced to just one-half that ofa single main. Not only is a more reliable system securedin this manner, but also one which is no more expensive toinstall. The fire main should be placed at the same depth asthe city water pipe in the same locality, thus avoiding thepossibility of freezing. For buildings of ordinary height the hydrants should beplaced at a distance from a building equal to its height. This .- ll^Pos/r/o/v ro/f ^ow P/i-£ssi//f£ a. Figure 299 (M 1-4). avoids the possibility of the walls falling on the hydrants orthe fireman. Hydrants or indicator valve posts placed tooclose to a wall are liable to become unapproachable In caseof fire, and cause a serious loss of pressure and a waste ofwater. (To be continued.) Cleveland Traction Situation. The Cleveland Electric Railway attorneys are now seekingto show that Mayor Johnson is financially interested, not onlyin the Forest City Railway Company, but also in the MunicipalTraction Company and the Low Fare Railway Company. On July 29 the company secured depositions before anotary, to be used in prosecuting the three injunction suitsagainst the low-fare companies. Considerable testimony wastaken which showed the mayor is .seeking to get back hispersonal guarantees given the property owners in retura forlow-fare consents. It was shown that holders of the mayorsguarantees of $ per front foot paving rebates in return forconsents can obtain th
Size: 1848px × 1352px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectstreetr, bookyear1906
